Macrofloral Biodiversity Conservation in Ifugao

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Macrofloral Biodiversity Conservation in Ifugao European Scientific Journal December 2013 /SPECIAL/ edition vol.4 ISSN: 1857 – 7881 (Print) e - ISSN 1857- 7431 MACROFLORAL BIODIVERSITY CONSERVATION IN IFUGAO Napoleon K. Taguiling, PhD Ifugao State University, Nayon, Lamut, Ifugao, Philippines Abstract Any biodiversity conservation effort starts from baseline information. A biodiversity study was then conducted in the province of Ifugao, Philippines to provide first hand information on the status of macrofloral biodiversity in the area. Rapid assessment using plot method was used in the inventory of macrofloral species. Ethnobotanical survey of key informants was also conducted to record knowledge of community members on the uses of plant species found in the locality. Results revealed 69 families 134 genera and 214 species of macroflora. Shannon’s diversity index for trees and shrubs showed 3.59 to 3.7 corresponding to relatively high diversity. Of the species recorded, 36 were endemic to the Philippines, 4 vulnerable based on the 2010 IUCN red list and under CITES Appendix II. Forest areas with lower elevation showed higher species diversity than those with higher elevation. Description of species importance values, dominance, similarity index and floristic checklist were provided. Ethnobotanical survey revealed 38 species used as food plants, 25 species used as medicinal plants, 26 species with socio-cultural importance, 2 species identified as source of strong fiber, 5 species with pesticidal properties, and 1 species utilized as organic fertilizer. Issues and problems related to macrofloral biodiversity and suggested solution actions were described. The forest areas in Ifugao are still rich in macrofloral diversity and can serve as a vital source for re-vegetation activities in areas with low plant density and diversity status. Leaving the remaining forest untouched and restoration of denuded forest cover in the other parts of Ifugao is vital in supporting macrofloral diversity conservation while mitigating climate change. Keywords: Macrofloral biodiversity, Ethnobotany Introduction Rationale Biodiversity plays various important roles beneficial to human being that extends far beyond mere sources of raw materials (Selliers 2005). Despite this fact, human actions caused loss of biodiversity at steadily increasing rate. Human activities cause the decline of animal and plant populations everywhere to the extent that extinction of some species could be due to such human activities. Fortunately, concern on biodiversity loss is increasing worldwide because of its negative effects in almost all human wellbeing like health, energy and food security, vulnerability to climate change and calamities, access to clean environment, water and raw materials. It is believed that limiting biodiversity loss while promoting human wellbeing is possible. Since direct actions towards limiting or reducing biodiversity loss are undertaken at the local level, it is important to strengthen the institutional capabilities at the local level for 469 European Scientific Journal December 2013 /SPECIAL/ edition vol.4 ISSN: 1857 – 7881 (Print) e - ISSN 1857- 7431 successful planning and implementation of sustainable biodiversity conservation programs. Planning for biodiversity conservation program requires baseline information on existing biological resources. Such information will serve as input during the planning process for biodiversity conservation and for effective implementation, management and monitoring. Biodiversity assessment is thus the stepping stone towards biodiversity conservation. The foregoing justifies the need for macrofloral biodiversity assessment in Ifugao as input in the proper management and conservation of its biological resources. Information on the current status of biological resources is limited and must be enhanced so that the kind and realistic level of biodiversity in the area can be established. Macrofloral biodiversity assessment will provide first hand scientific knowledge on species richness and diversity of the resources in the area. Further, the results will provide a deeper understanding on these parameters to serve as guide for biodiversity advocates, communities, and institutions in designing protection and conservation strategies of macrofloral resources such as possible sustainable use of the resources without depleting their population in their natural habitat. Objectives In support to biodiversity conservation efforts at the local level, a macrofloral biodiversity assessment was conducted to provide first hand information on the status of biodiversity and conservation issues in the province of Ifugao, Philippines. Specifically, it aims to: 1. Provide data on the species richness and diversity of macroflora in selected sites in Ifugao, 2. Record knowledge of community members on the uses of plant species found in the locality, 3. Document issues and problems and suggested action solutions related to macrofloral biodiversity conservation. Methodology Location of Study Sites The study was conducted in the province of Ifugao, one of the provinces of the Cordillera Administrative Region in Northern Philippines, specifically located at longitude between 120°50’ and 121°32’ and latitude between 16°35’ and 17°01’. It has a total land area of 251,778 hectares of which, about 90% or 226,369 hectares were forestland and 25,409 hectares were classified certified Alienable and Disposable land. The province is generally mountainous except in the eastern part which has hilly and rolling topography. Ifugao is about 330 kilometers from Manila and is accessible by land transportation. It has eleven municipalities and 175 barangays with a total population of about 165 thousand. Macrofloral biodiversity assessment was conducted in three municipalities of Ifugao particularly in Alfonso Lista, Kiangan, and Mayoyao representing low (<500 m asl), medium (500-100 m asl) and high (>1000 m als) elevation forest ecosystems, respectively. Macrofloral survey Rapid assessment of macrofloral species (trees and shrubs) using plot method was employed in the inventory. Three main inventory plot of 20 x100 m along the slope was established per study site. Within the main plot, three (3) 20x20 m quadrats were established for tree profiling, and 3 5x5m subquadrats per quadrat were established for the inventory of trees and shrubs. Tree identification was done at each 20 x 20m quadrat and in the 5 x 5 m subquadrats. The process includes locating, identifying and measuring diameter at breast height, total height and crown cover of all trees with a diameter at breast height (dbh) of 5 cm 470 European Scientific Journal December 2013 /SPECIAL/ edition vol.4 ISSN: 1857 – 7881 (Print) e - ISSN 1857- 7431 and above. Nomenclature and classification were based on Rojo, (1999) and Fernando (2004). Ethnobotanical interview using key informants (10 respondents per municipality) were also conducted to ascertain the socioeconomic and cultural uses of the plant species, the factors and activities related to the macrofloral biodiversity loss, and suggested action solutions to floral biodiversity conservation. This was followed by a focused group discussion to verify the findings. Results and discussions Macrofloral Biodiversity in Ifugao The inventory of macroflora in Ifugao revealed a total of 69 families, 134 genera and 214 species. There were 191 species of trees and shrubs belonging to 54 families and 121 genera. All the species surveyed were angiosperms except for Benguet Pine (Pinus Kesiya). Of the 54 families of trees and shrubs, Euphorbiaceae had the most number of genera (15) and individuals (24) followed by Rubiaceae with 7 genera and 9 species, and Meliaceae with 6 genera and 11 species. Family Moraceae had only 3 genera but with 21 species. Of the 121 genera, Ficus had the most number of species (17) followed by Syzygium with 9 species. Of the species recorded, 37 were endemic to the Philippines, and 4 species (Lithocarpus ovalis, Ziziphus talanai, Sandoricum vidalii, Dillenia philippinensis) were vulnerable under IUCN red list of 2010. Six species of palm was recorded in the inventory. One rattan species known as Lituko (Calamus manillensis) with edible fruits was recorded in the sampling plots at Kiangan, and another locally known as Barit (Calamus sp.) was recorded in Alfonso Lista, Ifugao. There were 8 species recorded belonging to the fern family and 8 species belonging to grasses, herbs and vines. The giant fern (Cyathea contaminans) is under CITES Appendix II. Table 1 shows the number of species and the diversity indices for the forest ecosystems in the three municipalities of Ifugao. The diversity index ranges from 3.59 to 3.7 indicating relatively high species diversity. Of the 191 species of tree and shrubs recorded, forest in Alfonso Lista, a remnant of a Dipterocarp forest and representing low elevation had the highest number of species (89) followed by forest in Kiangan representing medium elevation with 86 species. Forest in Mayoyao representing high elevation had the least number of species (74). A total of 3,466 individuals were surveyed distributed to 1197, 1535 and 734 individuals for Alfonso Lista, Kiangan, and Mayoyao forests, respectively. Forest in Kiangan had the highest species density and total number of individuals. This could be explained by the fact that ‘muyong” or private woodlot owners ensure that their respective “muyong” are adequately stocked with trees, shrubs and other perceived important plant species. Owners also practice cultural management practices to
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